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2022-10-06T14:20:47Z2022-10-06T14:20:47Z202048126e3192https://doi.org/10.18671/scifor.v48n126.052318-1222http://hdl.handle.net/1843/46031O uso de práticas não destrutivas como a espectroscopia na região do infravermelho próximo (Near Infrared Spectroscopy, NIRS) tem crescido e se destacado em qualificações de processos e produtos, e também em programas de melhoramento genético florestal, pois permitem a seleção de árvores ainda no povoamento. O objetivo deste estudo foi utilizar o NIR como ferramenta na análise da qualidade da madeira e seleção genética de árvores de Eucalyptus benthamii Maiden & Cambage com vistas à produção de celulose. Para o desenvolvimento dos modelos de calibração, 87 árvores, sendo 75 de E. benthamii, quatro de E. dunnii, quatro de E. grandis e quatro de E. saligna foram transformadas em cavacos. Parte desse material serviu para as análises de lignina Klason e totais, holocelulose e densidade básica, outra parte foi moída para aquisição dos espectros, que posteriormente foram correlacionados aos valores laboratoriais. A calibração do modelo foi determinada por análise de regressão dos mínimos quadrados parciais (PLS). Os modelos de calibração apresentaram ajustes satisfatórios para a lignina Klason (R2=0,82), lignina total (R2=0,74), teor de holocelulose (R2=0,82) e densidade básica de madeira (R2=0,73) e a sua utilização comercial é recomendada para predição de amostras desconhecidas. A técnica NIRS se mostrou promissora na predição da qualidade da madeira de Eucalyptus benthamii para a indústria de celulose e pode ser utilizada para acelerar o programa de melhoramento genético do E. benthamii.The use of non-destructive techniques such as near infrared spectroscopy (NIRS) has become of great interest in characterization of wood quality. Additionally, non-destructive techniques offer great application in genetic improvement programs because they aid selection of trees that are still in the stands. The objective of this study was to assess the suitability of NIRS as a tool in the analysis of wood quality and genetic selection of Eucalyptus benthamii Maiden & Cambage clones used for production of cellulose. Eighty-seven trees (75 of E. benthamii, 4 of E. dunnii, 4 of E. grandis, and 4 of E. saligna) were used for the development of calibration models. Wood samples were analyzed for Klason lignin, total lignin, holocellulose, and basic density. A sub-sample was milled and used to acquire the spectra, which were then compared against values obtained from standard laboratory techniques. Model calibration was determined by partial least squares (PLS) regression analysis. The values observed for anatomical and chemical traits of Eucalyptus benthamii wood remained within the range considered appropriate for Klason lignin (R2 = 0.82) and total lignin content (R2 = 0.74). NIRS calibration models presented satisfactory adjustments for holocellulose content (R2 = 0.82) and wood density (R2 = 0.73). The NIRS models developed in this study offer the cellulose industry a viable commercial tool that can be used for characterization of samples of Eucalyptus benthamii wood. The accuracy of the models warrants their use in programs to accelerate the genetic improvement of E. benthamii.CNPq - Conselho Nacional de Desenvolvimento Científico e TecnológicoOutra AgênciaporUniversidade Federal de Minas GeraisUFMGBrasilICA - INSTITUTO DE CIÊNCIAS AGRÁRIASScientia ForestalisEucaliptoMadeira - QualidadeMadeira - QuímicaMadeira - DensidadeEspectroscopia de infravermelhoPlantas - Melhoramento genéticoCeluloseQualidade da madeira de Eucalyptus benthamii para produção de celulose por espectroscopia no infravermelho próximo (NIRS)Quality of Eucalyptus benthamii wood for pulp production by Near Infrared Spectroscopy (NIRS)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://www.ipef.br/publicacoes/scientia/nr126/2318-1222-scifor-48-126-e3192.pdfTalita BaldinMaiara TalgattiAmanda Grassmann da SilveiraJosé Newton Cardoso MarchioriGleison Augusto dos SantosOsmarino Pires dos SantosBrígida Maria dos Reis Teixeira Valenteinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGLICENSELicense.txtLicense.txttext/plain; charset=utf-82042https://repositorio.ufmg.br/bitstream/1843/46031/1/License.txtfa505098d172de0bc8864fc1287ffe22MD51ORIGINALQualidade da madeira de Eucalyptus benthamii para produção de celulose por espectroscopia no infravermelho próximo (NIRS).pdfQualidade da madeira de Eucalyptus benthamii para produção de celulose por espectroscopia no infravermelho próximo (NIRS).pdfapplication/pdf486472https://repositorio.ufmg.br/bitstream/1843/46031/2/Qualidade%20da%20madeira%20de%20Eucalyptus%20benthamii%20para%20produ%c3%a7%c3%a3o%20de%20celulose%20por%20espectroscopia%20no%20infravermelho%20pr%c3%b3ximo%20%28NIRS%29.pdfe554e5b48383add9de0f03702772cbf4MD521843/460312022-10-06 11:20:47.375oai:repositorio.ufmg.br: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Repositório InstitucionalPUBhttps://repositorio.ufmg.br/oaiopendoar:2022-10-06T14:20:47Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false
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